Probing the acoustic vibrations of single metal nanoparticles by ultrashort laser pulses

The strong interaction of metal nanoparticles with light makes it possible to detect individual particles by far‐field optical methods. In this article, the interaction of a metal nanoparticle with a short laser pulse is discussed, with the emphasis on the coherent excitation of mechanical (acoustic...

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Bibliographic Details
Published in:Laser & photonics reviews 2010-09, Vol.4 (5), p.581-597
Main Authors: Tchebotareva, A.L., Ruijgrok, P.V., Zijlstra, P., Orrit, M.
Format: Article
Language:English
Subjects:
acoustic vibrations
Acoustics
Coherence
elastic properties
Excitation
Lasers
metal nanoparticles
Nanoparticles
Prisms
pump-probe spectroscopy
Vibration
Wire
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Summary:The strong interaction of metal nanoparticles with light makes it possible to detect individual particles by far‐field optical methods. In this article, the interaction of a metal nanoparticle with a short laser pulse is discussed, with the emphasis on the coherent excitation of mechanical (acoustic) modes and the optical detection of these vibrations. The literature on acoustic vibrations of single metal nanoparticles of different shapes (spheres, dumbbells, rods, cubes, wires, prisms) is reviewed, and the modes that have been excited and detected in these particles are discussed. Finally, the insights and potential applications enabled by these studies are summarized. The strong interaction of metal nanoparticles with light makes it possible to detect individual particles by farfield optical methods. In this article, the interaction of a metal nanoparticle with a short laser pulse is discussed, with the emphasis on the coherent excitation of mechanical (acoustic) modes and the optical detection of these vibrations.
ISSN:1863-8880
1863-8899
1863-8899
DOI:10.1002/lpor.200910034